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Steering input shaft leaking

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Loaderlou, Oct 4, 2020.

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  1. Oct 4, 2020 #1
    Loaderlou

    Loaderlou Medium Load Member

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    Feb 24, 2014
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    Hi friends. I have a 2003 Pete 379 with a TRW TAS 65 steering box. The input shaft is leaking. I changed the seal but it’s still leaking. I cleaned the shaft and housing as best I could see. I used a magnifying glass to look in and it looked like I did a good job. I didn’t have the correct tool, j37073, to install the seal, but I took my time with a socket and got it down enough to put the lock ring in. After the install I cleaned again and finished up. I’m still leaking the same amount of fluid as before. Any ideas? Thanks
     
    Loaderlou, Oct 4, 2020
    Loaderlou, Oct 4, 2020
    #1
    Daniel987 Thanks this.
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  3. Oct 4, 2020 #2
    Goodysnap

    Goodysnap Road Train Member

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    Time for a reman.......
     
    Goodysnap, Oct 4, 2020
    Goodysnap, Oct 4, 2020
    #2
    pushbroom, Dino soar, Rideandrepair and 3 others Thank this.
  4. Oct 4, 2020 #3
    daf105paccar

    daf105paccar Road Train Member

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    Reman,like Goodysnap said.
    You have to much play on the input shaft.
    Nothing you can do.
     
    daf105paccar, Oct 4, 2020
    daf105paccar, Oct 4, 2020
    #3
    Goodysnap, Rideandrepair and Diesel Dave Thank this.
  5. Oct 4, 2020 #4
    spsauerland

    spsauerland Road Train Member

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    A lot of times it's leaking from plug in the input shaft, not the seal. Regardless, go reman.
     
    spsauerland, Oct 4, 2020
    spsauerland, Oct 4, 2020
    #4
    pushbroom, daf105paccar, Diesel Dave and 1 other person Thank this.
  7. Oct 4, 2020 #5
    xsetra

    xsetra Road Train Member

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    When I replaced my 1st steering box.
    The labor was simple and easy.
    However because I didn't read the installation manual.
    I couldn't get it to correctly steer.

    I called parts house.
    Something to do with stops, locks and popets.
    The new box now had a leak. So I put the old one back on.

    Parts house replaced under warranty, they would not replace again. I studied and researched, read what I could find about installing the box.

    I hired the parts house mechanic to do the install

    Good luck
     
    xsetra, Oct 4, 2020
    xsetra, Oct 4, 2020
    #5
    Rideandrepair and Goodysnap Thank this.
  8. Oct 4, 2020 #6
    Goodysnap

    Goodysnap Road Train Member

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    Yup, 2 critical steps

    Set the poppets

    And replace the pinch bolt lock nut on the pitman arm and torque it. If you dont it will come loose and ruin the arm and the new gear.
     
    Goodysnap, Oct 4, 2020
    Goodysnap, Oct 4, 2020
    #6
    401-Alex, pushbroom, daf105paccar and 2 others Thank this.
  9. Oct 4, 2020 #7
    Loaderlou

    Loaderlou Medium Load Member

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    Feb 24, 2014
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    Thanks for the comeback everyone. I replaced it about 8 years ago. It’s sounds as though that is probably the life span of a steering box. Is there a way to check it further before I do the swap?
     
    Loaderlou, Oct 4, 2020
    Loaderlou, Oct 4, 2020
    #7
    Rideandrepair Thanks this.
  10. Oct 4, 2020 #8
    Rideandrepair

    Rideandrepair Road Train Member

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    I did the seal once on a 68 F 250, same thing, it leaked, bad worm gear I was told.
     
    Rideandrepair, Oct 4, 2020
    Rideandrepair, Oct 4, 2020
    #8
  11. Oct 4, 2020 #9
    Loaderlou

    Loaderlou Medium Load Member

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    Feb 24, 2014
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    Hey Goody. I know you mentioned about setting the poppets. Does the reman have the poppets set or do I have to do that. I don’t remember doing it last time
     
    Loaderlou, Oct 4, 2020
    Loaderlou, Oct 4, 2020
    #9
    Rideandrepair Thanks this.
  12. Oct 4, 2020 #10
    spsauerland

    spsauerland Road Train Member

    4,296
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    May 31, 2010
    West Harrison, In
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    Most TRW have auto set poppets. Genuine TRW reman will have directions on installation. Also, their website has service literature free to download.
     
    spsauerland, Oct 4, 2020
    spsauerland, Oct 4, 2020
    #10
    pushbroom, daf105paccar, xsetra and 2 others Thank this.
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